PRENTICE, Justin Steven Calder. Evaluating a double integral using Euler’s method and Richardson extrapolation. Lietuvos matematikos rinkinys, [S. l.], v. 65, n. A, p. 39–52, 2024. DOI: 10.15388/LMD.2024.38091. Disponível em: https://www.zurnalai.vu.lt/LMR/article/view/38091. Acesso em: 26 nov. 2025.